Ultrasound sensor market set for take off

July 30, 2018 //By Peter Clarke
Ultrasound sensor market set for take off
The micromachined ultrasound modules market recorded sales of $ 2.1 billion in 2017, according to market analysis company Yole Developpement, which expects the market to show a compound annual growth rate (CAGR) of 18 percent between 2017 and 2023.

The company reports that some new applications are showing good demand for either capacitive micromachined ultrasonic transducers (CMUTs) or piezoelectric micromachined ultrasonic transducers (PMUTs).

Ultrasound modules market by segment and technology. Source: Yole Developpement.

"At last, the mass-market is about to happen. At Yole we identified four concurrent factors explaining this timing," said Yole analyst Marjorie Villien, in a statement.

The first reason is that broader applications are seeing the benefit of ultrasound. Ultrasound has been around for long time as low volume high value application in medical imaging, but thanks to cheaper and smaller probes that market is starting to move to general practitioners and even homes. Meanwhile ultrasonic fingerprint sensing allows for under-display operations on smartphones and drives consumer volumes

The second is development and greater availability of technology. "PMUT, which requires a thin, controlled piezoelectric film, has benefited from this technology’s increased usage for inkjet printhead," said Alexis Debray, also an analyst with Yole.

Ultrasound sensing: product introduction and technology map. Source: Yole Developpement.

Thirdly, and as a result, the supply chain is maturing through actions by such companies as Hitachi and Philips in CMUT and by Dimatix and STMicroelectronics for PMUT and Globalfoundries and Silex Microsystems for both.

The fourth element is the emergence of packaging and assembly capabilities at such companies as Tong Hsing Electronic, Philips, and SilTerra.

The biggest market for ultrasonic sensors in 2017 was parking assistance, worth about $2 billion followed by automation at more than $550 million. However, the growth is coming from such applications as fingerprint sensing and medical. Fingerprint sensing is expected to be worth $2 billion within five years.

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